Home / 3,545.70-5,345.10-3,307.83

Finding the Fourth Proportional to 3,545.70, 5,345.10 and 3,307.83

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Solution

The fourth proportional to 3,545.70, 5,345.10 and 3,307.83 is: 4,986.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.70 : 5,345.10 = 3,307.83 : x
  2. Step 2: Convert to fraction form
    3,545.70/5,345.10 = 3,307.83/x
  3. Step 3: Cross multiply
    3,545.70x = 5,345.10 × 3,307.83
  4. Step 4: Simplify right side
    3,545.70x = 17,680,682.13
  5. Step 5: Solve for x
    x = 17,680,682.13/3,545.70
  6. Step 6: Final answer
    x = 4,986.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.